.report{
    box-sizing: border-box;
}

.nav {
    text-align: center;
    display: flex;
    justify-content: normal;
    position: relative;
    overflow: hidden;
    font-size: 15px;
    font-weight: bold;
}

.nav .nav-underline:before {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    /*border-bottom: 2px solid #4c9ff4;*/
}

.nav .nav-underline:hover:before {
    text-align: center;
    width: 100%;
}

.nav .nav-underline-active,
.nav .nav-underline-active:hover {
    color: #4c9ff4;
    border-bottom: 2px solid #4c9ff4;
    text-align: center;
}

.nav a {
    color: #000000;
    text-decoration: none;
    text-align: center;
    padding-left: 15px;
    padding-right: 15px;
    /*width: 120px;*/
    height: 40px;
    line-height: 40px;
    position: relative;
}

.nav a:hover{
    color: #4c9ff4;
}

@media (max-width: 580px) {
    .nav {
        overflow: auto;
    }
}

li{
    list-style: none;
}